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water valve shield

After finishing the previous minty water valve controller, I decided to make it an Arduino shield. This way, I can easily stack it onto other shields and extend its capability. I also added a few input buttons, and a DS1337 real-time clock, so that it can keep up with accurate time. Now the circuit has become much smaller, so I can’t produce it with home-made PCB any more(sadly…). Instead, I ordered professionally made PCBs from Laen, and here you are, meet the Arduino WaterValveShield!